Abstract
Pen pressure is one of the important elements of handwriting and questioned document analysis which is also crucial to recognize forgery. In this paper, we present a new, non-contact, non-destructive, and relatively inexpensive technique to measure the width of the grooves made by the writing. Results demonstrate a clear difference in measured groove widths for varying pen pressure. The effect of passing a written or signed paper in different types of printers has also been studied. A clear decrease of the groove depth was noted when passing the document through a laser printer. An ink jet printer only resulted in a small decrease of the groove depth, while no effect could be detected from a dot matrix printer.
Original language | English |
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Article number | 111388 |
Journal | Forensic Science International |
Volume | 338 |
DOIs | |
Publication status | Published - Sept 2022 |
Bibliographical note
Publisher Copyright:© 2022 Elsevier B.V.
Funding
This work was supported by the Grant No TSA-2018-32531 from the Scientific Research Projects of Istanbul University-Cerrahpasa , Istanbul, Turkey.
Funders | Funder number |
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Istanbul Üniversitesi-Cerrahpasa |
Keywords
- 3D measurements
- Documents
- Forensic science
- Handwriting
- Pen pressure
- Printers
- Profile measurements